Ken Wilber
![Wilber in 2006 with [[Bernard Glassman]] (background)](https://upload.wikimedia.org/wikipedia/commons/a/ad/Ken_Wilber_10.JPG)
Kenneth Earl Wilber II (born January 31, 1949) is an American theorist and writer on transpersonal psychology and his own integral theory, a four-quadrant grid which purports to encompass all human knowledge and experience.
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